Question

Factorise:-
x^2+x-90​

Answer 1

Answer:

$x {}^{2} + x - 90 \\ = x {}^{2} + 10x - 9x - 90 \\ = x(x + 10) - 9(x + 10) \\ = (x - 9)(x + 10)$

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Answer 2

Answer:

${x}^{2} + x - 90 \\ {x}^{2} + 10x - 9x - 90 \\ x(x + 10) - 9(x + 10) \\ (x - 9)(x + 10) \: ans$

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